move opengl/include/EGL/android_natives.h to include/ui/egl/android_natives.h and don't include it from egl.h

the android_native_ types are just forward declared in egl.h
diff --git a/opengl/include/EGL/eglplatform.h b/opengl/include/EGL/eglplatform.h
index d428087..9561490 100644
--- a/opengl/include/EGL/eglplatform.h
+++ b/opengl/include/EGL/eglplatform.h
@@ -89,7 +89,8 @@
 
 #elif defined(ANDROID)
 
-#include <EGL/android_natives.h>
+struct android_native_window_t;
+struct egl_native_pixmap_t;
 
 typedef struct android_native_window_t* EGLNativeWindowType;
 typedef struct egl_native_pixmap_t*     EGLNativePixmapType;
@@ -97,6 +98,7 @@
 
 #ifndef EGL_ANDROID_image_native_buffer
 #define EGL_ANDROID_image_native_buffer 1
+struct android_native_buffer_t;
 #define EGL_NATIVE_BUFFER_ANDROID       0x6000  /* eglCreateImageKHR target */
 #endif